By Luis Fierro Carrión (*) (A Spanish version of this article was written for the February 2015 edition of Revista Gestión, Ecuador). The international price of crude oil has dropped by 50% between June 2014 and February 2015 (the benchmark West Texas Intermediate - WTI - has dropped from $ 105 US dollars per barrel to $ 50, while the Brent fell from $ 115 per barrel in June to $ 61 in February). http://www.nasdaq.com/markets/crude-oil.aspx?timeframe ...